Simple Multiband Antenna for Mobile Phone Application Based on a Dual-arm Monopole Structure

摘要

In this paper, a printed monopole antenna for quad-band operation in the mobile phone is proposed and studied. The antenna occupies a volume of 40×20×4mm3 with a very low height as compared to others, yet it can cover two wide bands centred at about 925MHz and 1920MHz to realize GSM/DCS/PCS/UMTS operation. Monopole-like radiation characteristics of the proposed antenna can be observed by measurements over the operating bands, where peak gains are 0.1, 0.9, 0.8, 0.5 dBi, respectively, at each of the frequency band of interest.